Роль окислительных процессов в токсигенизации природной воды после аварии в коммунальной сети

Abstract

As known, the lipid peroxidation processes play an important role in regulation of the metabolism in the biological system of varying complexity. Besides, it is shown that the state of the physicochemical regulatory system of the lipid peroxidation is a base for the ecological monitoring, and the disruptions in the redox-state of the natural water is due to a development of its toxic properties. However, the status of lipid peroxidation process after the public utility accident is poorly studied. The aim of this work was to study dynamics of the lipid composition and its physicochemical properties in samples of the Dubna River water after the accident with sewer in Verbilki (June 2020) to assess their role in toxigenization of the nature water. The low content of hydrophobic compounds and no phospholipids identified in the natural water before the accident. Five days after the accident, the content of the hydrophobic compound was 8.4 times higher than the initial value. Within 9 days after the accident, the phospholipids in water samples are predominantly in the easily oxidizable fractions. These data are confirmed by UV-spectrophotometry and TLC methods. The data obtained and the literature analysis allow us to conclude that a significant increase in the content of hydrophobic compounds (including ketodienes and fat acids) with pronounced toxic properties and lytic effect on biological membranes causes toxigenization of natural water.